Interlayer Excitons in Transition-Metal Dichalcogenide Heterobilayers

被引：19

作者：

Nagler, Philipp ^{[1
]}

Mooshammer, Fabian ^{[1
]}

Kunstmann, Jens ^{[2
]}

Ballottin, Mariana, V ^{[3
]}

Mitioglu, Anatolie ^{[3
]}

Chernikov, Alexey ^{[1
]}

Chaves, Andrey ^{[5
]}

Stein, Frederick ^{[2
]}

Paradiso, Nicola ^{[1
]}

Meier, Sebastian ^{[1
]}

Plechinger, Gerd ^{[1
]}

Strunk, Christoph ^{[1
]}

Huber, Rupert ^{[1
]}

Seifert, Gotthard ^{[2
]}

Reichman, David R. ^{[6
]}

Christianen, Peter C. M. ^{[3
]}

Schueller, Christian ^{[1
]}

Korn, Tobias ^{[4
]}

机构：

[1] Univ Regensburg, Inst Expt & Angew Phys, D-93040 Regensburg, Germany

[2] Tech Univ Dresden, Dept Chem & Food Chem, Theoret Chem, D-01062 Dresden, Germany

[3] Radboud Univ Nijmegen, High Field Magnet Lab HFML EMFL, NL-6525 ED Nijmegen, Netherlands

[4] Univ Rostock, Inst Phys, D-18059 Rostock, Germany

[5] Univ Fed Ceara, Dept Fis, Caixa Postal 6030,Campus Pici, BR-60455900 Fortaleza, Ceara, Brazil

[6] Columbia Univ, Dept Chem, New York, NY 10027 USA

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2019年 / 256卷 / 12期

关键词：

interlayer excitons; transition-metal dichalcogenides; van der Waals heterostructures; 2D materials; TOTAL-ENERGY CALCULATIONS; MONOLAYER; HETEROSTRUCTURES; WS2; COHERENCE;

D O I：

10.1002/pssb.201900308

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In heterobilayers consisting of different transition-metal dichalcogenide (TMDC) monolayers, optically excited electron-hole pairs can be spatially separated into the adjacent layers due to a type-II band alignment. However, they remain Coulomb correlated and form interlayer excitons (ILEs), which recombine radiatively. While these ILEs are observed in several TMDC material combinations, their characters and properties depend on the specific system. Herein, some of these peculiarities are demonstrated by comparing studies performed on two different heterobilayer combinations: MoS2-WSe2 and MoSe2-WSe2.

引用

页数：7

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